MAre you headed for college?Choosing the right type of chi-square testNoGoing to college?YesChi-Square Test: Student, TeacherExpected counts are printed below observed countsChi-Square contributions are printed below expected countsStudentTeacherTotal1420.5-Student2.06136-PROBLEM:A curious AP® Statistics student wondered if students in her high school would responddifferently to a teacher than to a student when asked about their intention to go to collegeafter high school. One hundred students from her high school volunteered to participate inan experiment, and they were randomly assigned to have either a student or a teacherinterview them. This two-way table summarizes the data.InterviewerTeacher2720.52.061400-Yes1427No3623Total5050100Assume that the conditions for performing inference are met. Minitab output for a chi-square test using these data is shown.2329.51.43250200-Total416SKILLS 1.E, 4.E.Total4159•591002040608029.51.43250Chi-Sq = 6.986, DF = 1, P-Value = 0.008(a) Should a chi-square test for independence or a chi-square test for homogeneity be usedin this setting? Explain your reasoning.(b) State an appropriate pair of hypotheses for researchers to test in this setting.100OBFW High School Publishers 2020(c) Which cell contributes most to the chi-square test statistic? In what way does this celldiffer from what the null hypothesis suggests?(d) Interpret the P-value in context. What conclusion would you draw at a=0.01?with ajal

The Chi-square test for homogeneity is essentially assumed to validate if two or more multinomial…

Answered: (a) Should a chi-square test for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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What is the critical value for an upper‐tailed hypothesis test of the population mean when the population variance is unknown in which a null hypothesis is tested at the 0.10 level of significance based on a sample size of 19? 1.645 1.328 1.734 1.740
Interpret computer output: A sample of college students was asked whether they had a job outside of school. The following MINITAB output presents the results of a hypothesis test regarding the proportion of college students who have a job outside of school. Test of p=0.3 vs p>0.3 95% Lower X N Sample p Bound Z-Value P-Value 411 1198 0.343072 0.320511 3.25 0.001 Part: 0 / 3 Part 1 of 3 (a) What are the null and alternate hypotheses? Ho: OO D=0 H:
Based on this p value can we reject the null hypothesis??
Does it fail to reject null?
a) Identify the variables and state the null and alternative hypotheses of a chi-squared test of independence. b) Find the expected count for cell (1, 1) and cell (2, 3) (that is, for cells (Lower income, Essential) and (Middle income, Not too important))
Test The Claim That The Proportic X sess2/?cid 3D104441&aid%=D745292123/skip/2 wseBrowseBrowse A WebAdvisor Main... EdPuzzle Banner Cengage * Cengage Test the claim that the proportion of men who own cats is smaller than the proportion of women who own cats at the .05 significance level. The null and alternative hypothesis would be: ad = Wd:0 dl = Wrf :0p rf = Wrl:0 dd = Wd:0g df = Wrf:0g dd = Wd:0g The test is: left-tailed tvwvo-tailed right-tailed Based on a sample of 60 men, 45% owned cats Based on a sample of 60 women, 55% owned cats The test statistic is: (to 2 decimals) The p-value is: (to 2 decimals) Based on this we: O Reject the null hypothesis O Fail to reject the null hypothesis Submit Question 23
What is the level of significance? State the Null and alternative hypotheses. Will you use a left field, right tailed, or two tailed test? Identify the sampling distribution you were used and explain the rationale for your choice what is the value of the sample test statistic? Find or estimate the P value. Will you reject or fail to reject the null hypothesis? State your conclusion in the context of the application. A system specialist has studied the workflow of clerks all doing the same inventory work. Based on the study, she designed a new workflow layout for the inventory system. To compare average product for the old and new methods, a random sample of six clerks was used. The average production rate ( Number of inventory items process per shift) For each clerk was measured both before and after the new system is introduced. The results are shown below. Test the claim that our new system increases the main number of items process per shift. Assume that both distributions or mound…
(a) State the null and alternative hypotheses.Ho= Ha= (b) Give the notation for the sample statistic.statistic symbol-statistic symbol (c) Give the value for the sample statistic. Value=# Use the randomization distribution to estimate the p-value? p-value=#
Takeout Food A magazine article reported that 14% of adults buy takeout food every day. A fast-food restaurant owner surveyed 180 customers and found that 31 said that they purchased takeout food every day. At a=0.01, is there evidence to believe the article's claim? Use the critical value method with tables. Part 1 of 5 (a) State the hypotheses and identify the claim. This hy is a two-tailed V test. Part (b th e critical vaiue, separate them with co Critic Part: 2 / 5 Part 3 of 5 (c) Compute the test value. Always round z score values to at least two decimal places. z=

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